Buffer overflow in Tenda F456
CVE-2026-7055
A security vulnerability has been detected in Tenda F456 1.0.0.5. This issue affects the function fromVirtualSer of the file /goform/VirtualSer of the component httpd. The manipulation of the argument menufacturer/Go leads to buffer overflow. The attack is possible to be carried out remotely. The exploit has been disclosed publicly and may be used.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.010 (62.1th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 62nd percentile — 62.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.010 · change: +0.004
Affected products
- Tenda F456 — versions 1.0.0.5
- Tenda F456 Firmware — versions 1.0.0.5
Weakness classification (CWE)
References
- vuldb.com/vuln/359628 (technical-description, VDB Entry, Third Party Advisory, vdb-entry)
- vuldb.com/vuln/359628/cti (signature, Permissions Required, permissions-required, VDB Entry)
- vuldb.com/submit/798457 (VDB Entry, Third Party Advisory, third-party-advisory)
- github.com/Litengzheng/vuldb_new/blob/main/F456/vul_126/README.md (Exploit, exploit, Vendor Advisory)
- www.tenda.com.cn/ (Product, product)
Frequently asked questions
- What is CVE-2026-7055?
- CVE-2026-7055 is a high-severity vulnerability in Tenda F456, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 8.8/10. Published 2026-04-26.
- How severe is CVE-2026-7055?
- High severity. CVSS v3 base score is 8.8 out of 10.